This research paper presents a friction and wear test rig, developed from locally available materials. Sizing of the various components of the rig was done as specified by Society of Automobile Engineers. The required materials for the test rig were sourced locally, constructed and assembled. The input shaft was sized to fit in the speed range of available lathe machines. The test rig was tested using Soy oil, groundnut oil and SAE 40 oil lubricant. Samples generated from the test rig were analyzed using Atomic Absorption Spectroscopy to obtain wear metal count in the oil samples. Results for three wear elements showed that at 40 rpm, copper in oil samples ranged from 6.2 % - 10.2 % concentration whereas at higher speeds, a distinct reduction in wear metal concentration was obtained. Other wear elements followed similar profile. The test rig is capable of predicting performance of oil lubricants in storage and operating conditions. The test rig is recommended in industries to increase mean time between machine failures of production equipment thereby improving productivity and profitability.
Test, Rig, Lubrication, Friction, Wear, Design
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